asn.dev

Autonomous system

AS47405 NSM

Unclassified RIPE

IPv4 addresses 256 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly NO
Exchanges 1 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Nasjonal Sikkerhetsmyndighet

Norway · AI-generated

government security agency

NSM is operated by Nasjonal Sikkerhetsmyndighet, the Norwegian National Security Authority.

What it's used for

  • The address space carries internal agency infrastructure, identified by the netname NSM-NET and registrant NCSC-NO NOC; NASJONAL SIKKERHETSMYNDIGHET.
  • The AS announces 256 IPv4 addresses and 1 IPv6 prefix, with only 2 observed neighbours, indicating a small, isolated internal network rather than a transit or access provider.
  • Traffic consists of internal communications and systems for Norway's national protective security agency.

Notable

  • The registrant NCSC-NO NOC; NASJONAL SIKKERHETSMYNDIGHET aligns directly with the AS holder.
  • The address inventory is minimal, consisting of a single IPv4 /24 block and one IPv6 /48 prefix, consistent with a single-site government agency.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Free Internet eXchange OsloOslo, Norway91.198.176.68

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS2116GLOBALCONNECT AS83
AS60052Forsvarsdepartementet9

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 1 prefixes

CountryNamePrefixes
NONorway2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS47405
Registry name
NSM
Registrant
NNSA-MNT
Abuse contact
network-abuse@ncsc.no
Registered
2008-06-12
Last changed
2024-05-27
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS47405
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
5 naming AS47405

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 432 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check